1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: Commander, Naval Sea Systems Command, ATTN: SEA 05S, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or emailed to CommandStandard
2、snavy.mil, with the subject line “Document Comment”. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.dla.mil. FSC 6060 METRIC A-A-59940 19 November 2013 COMMERCIAL ITEM DESCRIPTION CONNECTORS, FIB
3、ER OPTIC, SINGLE OR MULTIPLE FIBER, GENERAL SPECIFICATION FOR The General Services Administration has authorized the use of this commercial item description, for all federal agencies. 1. SCOPE. This commercial item description (CID) covers the general requirements for connectors with the following a
4、ttributes: low optical loss performance, high reliability, and compatible with loose tube, tight buffered, and ribbon multimode and single-mode optical fiber. 2. CLASSIFICATION. This CID uses a classification system that is included in the Part or Identification Number (PIN) (see 7.2). 2.1 Terminati
5、on process. Connector termination process shall be designated as indicated in table I. TABLE I. Connector termination process. Termination process Designation Epoxy polish 1 Quick-connect fusion splice 2 Quick-connect mechanical splice 3 2.2 Type. Connectors covered by this specification shall be of
6、 the following types as specified (see 3.1): a. Type 1 multimode (MM) Ultra Physical Contact (UPC). b. Type 2 single-mode (SM) UPC. c. Type 3 single-mode (SM) Angled Physical Contact (APC). 2.3 Fiber/cable type compatibility. The connector fiber/cable compatibility type is designated by a single let
7、ter as indicated in table II. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59940 2 TABLE II. Fiber/cable configuration type. Fiber/cable configuration type Designation Buffered fiber 1/ A OFCC tight structure 2/ B OFCC non-tight structure 3/ C
8、 Ribbon 4/ D NOTES: 1/ The connector can accept buffered fiber with no individual protective jacket or strength member. 2/ The connector can accept buffered fiber with an individual protective jacket and strength member. The cable is considered to be of tight construction. This includes cable in acc
9、ordance with MIL-PRF-85045/16. 3/ The connector can accept buffered fiber with an individual protective jacket and strength member. The cable is considered a non-tight construction. This includes furcation units in accordance with A-A-59729. 4/ The connector can accept fibers in a ribbon. 2.4 Housin
10、g type configurations. Housing type configurations are as follows: a. Simplex one optical fiber/ferrule/one ferrule. b. Duplex one optical fiber/ferrule/two ferrules. c. Multiple fiber terminus multiple optical fibers/one ferrule. 2.5 Temperature range. Temperature range designations are specified i
11、n table III. TABLE III. Temperature range designation. Temperature range designation Operating temperature Non-operating temperature Storage temperature C (F) C (F) C (F) 1 -28 to +65 (-18.4 to +149) -40 to +70 (-40 to +158) -40 to +70 (-40 to +158) 3. SALIENT CHARACTERISTICS. 3.1 Specification shee
12、ts. Individual item requirements shall be as specified herein and in accordance with the applicable specification sheet. In the event of any conflict between the requirements of this CID and the specification sheets, the latter shall govern. 3.1.1 Interchangeability and intermateability. All connect
13、ors of the same design (i.e., the same part number and configuration) shall be physically and functionally interchangeable without need for modification of such items or of the mating equipment. 3.1.2 Interface dimensions. The interface dimensions of the connector shall be as defined herein and in t
14、he applicable specification sheet (see 3.1). 3.1.3 Cable strain relief. The design of connector cable configuration B, C, and D shall include strain relief for capture of the aramid yarn in the cable. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A
15、-A-59940 3 3.1.4 Bend limiter. The design of all cable configurations shall include a bend limiter (boot) at the rear of the connector. 3.1.5 Optical fiber cable compatibility. Cable designation A connectors have 900-micron fiber and shall properly terminate to 0.900+0.050-millimeter buffered optica
16、l fiber. Cable designation B connectors shall properly terminate to MIL-PRF-85045/16 single-fiber cable. Cable designation C connectors shall properly terminate to commercial single-fiber cable with an outer diameter of 1.8 to 2.4 millimeters. Cable designation D connectors shall properly terminate
17、to commercial ribbon cable. 3.1.6 Optical fiber attachment. Optical fiber attachment inside the ferrule and barrel (part into which ferrule is inserted) shall be provided by adhesive bonding. Single fiber cable strength member attachment for epoxy polish connectors shall be provided by crimping. 3.1
18、.6.1 Optical fiber termination (quick-connect connector). The optical fiber termination methodologies used for affixing a quick-connect connector to the fibers to be attached shall meet the requirements specified herein. 3.1.6.1.1 Fusion/mechanical fiber splice (quick-connect connector). When utiliz
19、ed, the mechanical or fusion fiber splice shall be integral to the ferrule body and include the splice housing. 3.1.6.1.2 Fusion/mechanical fiber splice housing (quick-connect connector). The mechanical or fusion fiber splice housing shall restore the environmental and mechanical integrity of the op
20、tical fiber terminating to it and meet the performance requirements specified herein. The housing shall not affect the operation of the connector or associated tooling when installing or removing the connector. 3.1.7 Color. In accordance with EIA-339, a portion of the connector housing or boot shall
21、 be blue or yellow for single-mode UPC, green for single-mode APC, and beige or slate for multimode. 3.1.8 Endface geometry (quick-connect connector only, single fiber). Connectors with pre-polished fiber stubs shall utilize an enhanced, domed end, physical contact (PC) polish that results in ferrul
22、e endface with geometric parameters as follows: a. Radius of curvature (ROC): 7 millimeters to 25 millimeters. b. Apex offset: 50 microns. c. Fiber height: (1) Protrusion: 0.05 microns (50 nanometers). (2) Undercut: The maximum value (limit) for the spherical undercut is dependent upon the ROC of th
23、e connector under test (see table IV). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59940 4 TABLE IV. Maximum acceptable undercut. ROC (mm) Undercut (nm) 7 125 8 125 9 125 10 125 11 115 12 106 13 98 14 91 15 85 16 80 17 75 18 72 19 68 20 65 21
24、 62 22 59 23 56 24 53 25 50 3.1.8.1 APC endface geometry (quick-connect connector only, single fiber). Connectors with pre-polished APC fiber stubs shall utilize a polish that results in ferrule endface with geometric parameters as follows: a. Radius of curvature (ROC): 5 millimeters to 12 millimete
25、rs. b. Apex offset: 70 microns. c. Fiber height: (1) Protrusion: 0.05 microns (50 nanometers). (2) Undercut: 0.10 microns (100 nanometers). 3.1.9 Endface condition (quick-connect connector only). The ferrule endface on connectors with pre-polished fiber stubs shall be smooth and free of scratches, p
26、its, chips, and fractures. 3.1.10 Cleaved fiber stub endface condition (quick-connect connector only). For connectors with pre-polished fiber stubs, the endface angle for the cleaved fiber stubs shall be less than 2 degrees from perpendicular to the fiber axis. Cleaved fiber stub surfaces shall be u
27、nshattered and free of large chips, fractures, pits, lips, spirals, or other defects (e.g., hackle, mist) that are detrimental to splice performance. Refer to TIA-455-179 for detailed descriptions, illustrations, and interferomic fringe patterns for the various endface defect conditions. Refer to TI
28、A-455-57 for the fiber endface preparation acceptability guidelines. 3.1.11 Ferrule extension and contact force. The ferrule endface position with respect to contact force shall be as specified in the specification sheet (see 3.1) after polishing has been completed. Provided by IHSNot for ResaleNo r
29、eproduction or networking permitted without license from IHS-,-,-A-A-59940 5 3.2 Materials. 3.2.1 Nonmetallic materials. Non-metallic materials shall not be affected by the use of alcohol based cleaning solutions. Nonmetallic materials shall not degrade when the connector is operated under the envir
30、onmental conditions defined herein. 3.2.1.1 Adhesives (epoxies). Adhesives are not precluded from use in the construction of the connectors specified herein. However, the types of adhesives which may be used shall be as specified herein in the applicable specification sheet (see 3.1). Adhesives shal
31、l not be used in the optical path of the connector. 3.2.1.2 Index matching gel. Index matching gels are not precluded from use in the construction of quick-connect connectors identified within this specification. If an index matching gel is used, it shall be MIL-PRF-24794 or an index matching gel ap
32、proved by the approving activity. 3.2.1.3 Sealing compounds. Sealing compounds which may flow at the maximum upper storage temperature specified (see 3.1), or may crack at the minimum lower storage temperature specified (see 3.1.1), shall not be used. 3.2.2 Metallic materials. All metals used in con
33、nectors shall be corrosion resistant or shall be suitably plated or otherwise finished to prevent corrosion during service life. 3.2.2.1 Dissimilar metals. Dissimilar metals shall not be used in intimate contact unless suitably finished to prevent electrolytic corrosion. Surfaces that may be subject
34、ed to abrasive operations during polishing shall not be coated or plated in any manner. 3.2.3 Toxic and hazardous products and formulations. The products used in the connector construction shall not give off toxic or explosive fumes when exposed to flame. Materials used shall have no adverse effect
35、on the health of personnel when used for the intended purpose. 3.2.4 Fungus. Connector materials not listed as fungus inert in MIL-HDBK-454 shall be tested in accordance with TIA/EIA-455-56 for a duration of 28 days, and connector materials shall show sparse or very restricted microbial growth and r
36、eproduction with minor or inhibited substrate utilization. There shall be little or no chemical, physical, or structural change detectable. 3.2.5 Oxygen index. When tested in accordance with ASTM D2863, polymeric connector materials shall have an oxygen index of 28 percent or greater. 3.2.6 Salt spr
37、ay. When tested in accordance with TIA-455-16 with an exposure duration of 48 hours, connectors shall show no visual evidence of deterioration such as flaking, pitting, blistering, or loosening of finishes; corrosion of metal surfaces; or in the case of plated metals, corrosion which has passed thro
38、ugh the plating and attacked the base metal. No corrosive effects shall be seen on the external connector parts that could be detrimental to the operation of the connector. 3.2.7 Flammability. Connectors shall meet the requirements of either 3.2.7.1 or 3.2.7.2. 3.2.7.1 Connector flammability. When m
39、ated connectors are tested in accordance with EIA-364-81, and subjected at the region of the mated pair interface to a small-scale, 0.75-inch flame for 60 seconds, there shall be no dripping which will cause the flammable material to ignite and there shall be no violent burning or explosive type fir
40、e. 3.2.7.2 Material flammability. When tested in accordance with UL-94, polymeric connector materials shall have a rating of V-1. 3.2.8 Radioactive materials. Radioactive materials shall not be used. 3.2.9 Lubricants. If utilized, lubricants used shall be permanent and shall not require replacement
41、during the lifetime of the connector. Lubricants shall be useful over the environmental conditions specified herein. 3.2.10 Sealing compounds. Sealing compounds shall not be used. 3.2.11 Liquid materials. Liquid materials shall not be used. 3.2.12 Ferrule. Unless otherwise specified (see 3.1), ferru
42、le material shall be ceramic (zirconia). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59940 6 3.3 Mechanical properties. 3.3.1 Cable pull-out (fiber cable connector configuration B, C, and D only). When tested in accordance with EIA/TIA-455-6,
43、 the connector shall be capable of sustaining a static tensile load of at least 67 newtons (15 pounds) applied for 1 minute to the cable behind the back end of the connector without evidence of physical damage to the connector or the optical fiber cable. The connector shall be mated to a fixed conne
44、ctor adapter for this test. The change in optical transmittance shall not exceed 0.5 decibel after the test. The return loss of the connector shall be as specified after the test. 3.3.1.1 Cable pull-out (fiber cable connector configuration B, C, and D only) pull-proof connector design. When tested o
45、n a connector with a pull-proof design, in addition to the requirements of 3.3.1, the change in optical transmittance shall not exceed 0.5 decibel during the test. 3.3.2 Fiber pull-out. For quick-connect connector designs the connector shall also meet 3.3.2.1 and 3.3.2.2. 3.3.2.1 Fiber to ferrule pu
46、ll-out. The fiber pull-out force shall be tested by applying the axial tensile load of 14 newtons (3.1 pounds) between the fiber and the ferrule for a duration of 1 minute. The connector shall meet the optical requirements of 3.5.4 during and after the test. 3.3.2.2 Fiber to splice pull-out. When te
47、sted in accordance with TIA-455-28, the fiber-to-splice dynamic strength test load (force in axial tension) at optical failure shall not be less than the values indicated in table V. TABLE V. Dynamic strength test loads. Splice type Fiber coating/buffer diameter Force Mechanical 250 m 2.0 N (0.45 lb
48、) 900 m 5.0 N (1.12 lb) Fusion 250 m / 900 m 8.9 N (2.0 lb) 3.3.3 Flex (fiber cable connector configuration B, C, and D only). When tested in accordance with TIA/EIA-455-1, the connector shall withstand 200 flexing cycles. An initial 100 flexing cycles shall be performed; after which the connector/c
49、able shall be rotated 90 degrees and subjected to an additional 100 flexing cycles for a total of 200 flexing cycles. The flexing rate shall not exceed 12 to 14 cycles per minute. The change in optical transmittance shall not exceed 0.5 decibel during (every 50 cycles) and after the test. After the test, the return loss of the connector shall be as specified. Upon visual examination, there shall be no e
